CCE
Skype Cloud Connector Edition: The way to Integrate Corporate PBX and Setup PSTN Calls with Skype for Business Online (Office 365)
Skype for Business CCE is a hybrid solution that allows integrating the corporate PBX with the Office 365. CCE offers a set of components offering organizations to connect to the corporate PBX, organize the SIP trunk from your Office 365.
Skype for Business – Cloud Connector Edition (CCE)
A couple of days ago Microsoft released the Cloud Connector Edition (CCE) for Skype for Business Online, a hybrid solution that enables integrating your corporate PBX with the Office 365.